Originally Posted by stlnation
Im thinking the locks broke off or the catch inside the connector is broken.
These connectors look different than the iap connectors. They were easy peasy.
Are you sure you're messing with the correct connector? The main harness connectors are on the drivers side inside the engine bay behind the battery. There are two connectors. One brown. One black. You'll be putting them into the brown one and running them into the car and connecting the other end onto the ECU connectors.
You'll need to remove the locking piece before you can put the connector in.